countrylist.cpp

// SPDX-FileCopyrightText: Copyright (C) 2015 swift Project Community / Contributors
// SPDX-License-Identifier: GPL-3.0-or-later OR LicenseRef-swift-pilot-client-1
 
#include "misc/countrylist.h"
 
#include <QJsonValue>
#include <QRegularExpression>
#include <Qt>
 
SWIFT_DEFINE_SEQUENCE_MIXINS(swift::misc, CCountry, CCountryList)
 
namespace swift::misc
{
    CCountryList::CCountryList(const CSequence<CCountry> &other) : CSequence<CCountry>(other) {}
 
    CCountry CCountryList::findByIsoCode(const QString &isoCode) const
    {
        const QString iso(isoCode.trimmed().toUpper());
        if (!CCountry::isValidIsoCode(iso)) { return {}; }
        return IDatastoreObjectList::findByKey(isoCode);
    }
 
    CCountry CCountryList::findBestMatchByCountryName(const QString &candidate) const
    {
        if (candidate.isEmpty()) { return {}; }
 
        thread_local const QRegularExpression reg("^[a-z]+", QRegularExpression::CaseInsensitiveOption);
        const QRegularExpressionMatch match = reg.match(candidate);
        const QString cn(match.hasMatch() ? match.captured(0) : candidate);
        const CCountryList countries =
            this->findBy([&](const CCountry &country) { return country.matchesCountryName(cn); });
 
        if (countries.isEmpty()) { return this->findFirstByAlias(cn); }
        if (countries.size() < 2) { return countries.frontOrDefault(); }
 
        // find best match by further reducing
        for (const CCountry &c : countries)
        {
            if (c.getName() == cn) { return c; }
            if (c.getName().startsWith(cn, Qt::CaseInsensitive)) { return c; }
            if (cn.startsWith(c.getName(), Qt::CaseInsensitive)) { return c; }
        }
        return countries.front();
    }
 
    CCountry CCountryList::findFirstByAlias(const QString &alias) const
    {
        if (alias.isEmpty()) { return {}; }
        const QString a(alias.toUpper().trimmed());
        for (const CCountry &country : (*this))
        {
            if (country.matchesAlias(a)) { return country; }
        }
        return {};
    }
 
    QStringList CCountryList::toIsoNameList(bool sorted) const
    {
        QStringList sl;
        for (const CCountry &country : (*this))
        {
            const QString s = country.getCombinedStringIsoName();
            if (s.isEmpty()) { continue; }
            sl.append(s);
        }
        if (sorted) { sl.sort(); }
        return sl;
    }
 
    QStringList CCountryList::toNameIsoList(bool sorted) const
    {
        QStringList sl;
        for (const CCountry &country : (*this))
        {
            const QString s = country.getCombinedStringNameIso();
            if (s.isEmpty()) { continue; }
            sl.append(s);
        }
        if (sorted) { sl.sort(); }
        return sl;
    }
 
    QStringList CCountryList::toNameList(bool sorted) const
    {
        QStringList sl;
        for (const CCountry &country : (*this))
        {
            const QString s = country.getName();
            if (s.isEmpty()) { continue; }
            sl.append(s);
        }
        if (sorted) { sl.sort(); }
        return sl;
    }
 
    QStringList CCountryList::toIsoList(bool sorted) const
    {
        QStringList sl;
        for (const CCountry &country : (*this))
        {
            const QString s = country.getIsoCode();
            if (s.length() != 2) { continue; }
            sl.append(s);
        }
        if (sorted) { sl.sort(); }
        return sl;
    }
 
    QStringList CCountryList::toIso3List(bool sorted) const
    {
        QStringList sl;
        for (const CCountry &country : (*this))
        {
            const QString s = country.getIso3Code();
            if (s.length() != 3) { continue; }
            sl.append(s);
        }
        if (sorted) { sl.sort(); }
        return sl;
    }
 
    CCountryList CCountryList::fromDatabaseJson(const QJsonArray &array)
    {
        CCountryList countries;
        for (const QJsonValue &value : array)
        {
            CCountry country(CCountry::fromDatabaseJson(value.toObject()));
            countries.push_back(country);
        }
        return countries;
    }
} // namespace swift::misc